Greg: I think it is clear that we both understand the ignition process. But the more we explain it, the more complicated it gets. I'll try to summarize. The...
Dear All, I'd like to bring this thread up again. I read a while back on the eng.tips forum about using various means and ways of loading an engine to perform...
Yep. But I also see a few people claim Amps secondary current (not milliapms) in some ads too.... but also without proof, sure enough. So, despite a visit to...
... I assume it's a 1440 rpm motor ? In which case you could expect to brake around 2hp at 5,000 rpm, I think you could be reasonably confident that it would...
Ian
iwd@...
Jan 9, 2008 12:39 am
14162
Ian, Thanks for your suggestions. Yes, it's a 1440rpm motor, and I understand about the motor flying apart so the need to run it fully enclosed in the name of...
Howdy to the many seasoned engine exploring experts here, Wife won't let me inject drugs or take psychedelics so stuck with 'real' world risks to squash brain...
... There must be some other cam guys in your neighborhood ? I can relate a couple of stories, one is of madman Luck Kieser who cut 2 cylinders off a RR Merlin...
Ian
iwd@...
Jan 23, 2008 11:18 pm
14167
... Gosh I don't even know what most your stable is but sure looks good especially the hill climber thingy. I'd seen the huge RR Merlin install and big blower...
bottom posted, and snipped ... Only a 360* isolastic linked Commando will do. ... engine on 91 octane yet still run good w/o any boost in lugging to thrilling...
Dan Timberlake wrote ... Actually, the standard Norton Commando combustion chamber has plenty of squish band already, and even more when opened up for a 920 cc...
How is the head held to that aluminium block on the milling table? Are you using what looks like three threaded holes in the top of the head? Are they really...
All, Those three top head steady boss surfaces are fairly parallel to the head gasket surface but I weld two little piles of filler rod above the exhaust valve...
bottom posted ... plenty of squish band already, and even more when opened up for a 920 cc bore ... 920 cc conversion. Lots of squish band here. Easy to get...
... Are you using what looks like three threaded holes in the top of the head? Are they really parallel to the bottom? ... Yes, it is held by bolts in the...
... That's because the one in your link has the stock counterbore diameter for the stock 73 mm bore on the 750 Commando. The head in my link has been opened...
Gotta think well done water injection would allow almost any boost pressure a Norton lower end would handle. Be sure to magnaflux the crank, and if it passes,...
... to the head gasket surface but I weld two little piles of filler rod above the exhaust valve cover cap holes for extra support and stability. I mill them...
But with 81mm bore there is little cylinder bore integrity especially near the counter bored holes on the sides of the cylinder block for the allen bolts which...
... especially near the counter bored holes on the sides of the cylinder block for the allen bolts which go down to the crankcase and little gasket surface...
If this is inappropriate use of the list I apologize. The local (Iowa, USA) grey iron foundries have turned down the opportunity to cast a run of Moto Parilla...
Maybe.... depends on what you are looking for... I have used a small foundry near Oakland , Ca. He will make parts from the original, keep in mind your new...
For finish I'm presuming a sand cast surface from a fairly tight sand. Having said that, I understand I will have to deal with risers, sprues, and flash. I'm...
Do you know what alloy you want..? Do you want it heat treated..? All that matters too.... I am not home this weekend, but when I get home, I will look up...
Don't have a clue as to what I want or should want. I had presumed the concerns of material and condition of the casting would be limited by using LA Sleeve...
This may not help "right now" but if you need anything done in zinc or aluminum, you might want to check out Alpha Foundry in Wright City, MO. Their website is...
I`m planing to do some overbore and therefore looking for useful pistons. Didn`t find anything in mc so looked at car pistons. Any reservations using car...
Hans Passberger
passberger@...
Jan 27, 2008 8:56 am
14187
Steve: I'm just a motorhead with no motorcyce racing experience. However I would like to address the issue of static CR versus boost. Qouting from US specs on...
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